Insulated power line double-tightening lightning protection insulator with electricity testing grounding ring

Abstract

An insulated power line double-tightening lightning protection insulator with an electricity testing grounding ring is characterized in that the upper end of an insulator main body is provided with ametal end, and the axis of the lower end of the insulator main body is provided with a metal screw rod; a jointing clamp is arranged at the top end of the metal end; the jointing clamp is composed ofa bottom plate, a top plate, a screw rod and a jointing clamp nut, a wire neck is arranged between the top plate and the bottom plate, and the protection insulator is characterized in that gradually-expanding ports integrated with the bottom plate are arranged at two ends of the wire neck of the bottom plate, and the inner circumferential surfaces of the gradually-expanding ports adjacent to the bottom plate are smoothly connected with the inner side of the wire neck. The protection insulator has the advantages that the extension groove and the divergent opening are added to the two ends of the wire neck of the wiring clamp bottom plate, and the bending angle of the divergent opening to the power line is arc-shaped, so that when the power line swings, the compression and stretching effectson the power line are greatly reduced, the damage effect of wind power on the power line is greatly reduced, and the operation safety of a power network is greatly improved.

Description

technical field [0001] The invention relates to an insulated power line double-tight lightning protection insulator with an electric test grounding ring, which is used for supporting power transmission lines. Background technique [0002] Insulators are commonly used support components for power transmission lines. The main structure of the prior art includes porcelain insulators or rubber insulators with rainproof plates. Metal ends are provided at the upper end or (and) lower end of the insulator body, and the axis of the lower end is provided with A metal screw rod and a mounting nut are provided, and a terminal clamp for fixing the power line is arranged on the top of the metal end at the top. The terminal clamp generally consists of a base plate, a top plate, a screw and a nut, and at least two screw rods are arranged on the base plate, and a clamping groove for clamping the power line is provided between the top plate and the base plate. When installing, put the power...

AI Technical Summary

Problems solved by technology

Because the power line swings like a swing under the action of the wind force, the adjacent part of the power line and the terminal clamp will be subjected to the repeated action of sharp bending at both ends of the clamping groove of the terminal clamp, so that the surrounding area of ​​the power line (mainly the two Side) is subject to frequent compression and stretching, and it is easy to break after a long time, and the resulting power failure accidents occur from time to time

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